package day03;

public class IfElseDemo {
    public static void main(String[] args) {
        double price = 300.0;   //带数(600.0, 300.0)
        if(price>=500){ //满
            price*=0.8;
        }else{ //不满
            price*=0.9;
        }
        System.out.println("最终结算金额为:"+price);

        //2)判断成绩合法还是不合法:
        double score = 95.5;   //带数(95.5, -5, 555)
        if(score>=0 && score<=100){
            System.out.println(score+"是合法成绩");
        }else{
            System.out.println(score+"是不合法成绩");
        }

    }
}


